Based on micro fuel cell technology developed at KTH Royal Institute of Technology in Stockholm, the MyFC PowerTrekk uses ordinary water to extend battery life for devices of up to 3 watts.
Anders Lundblad, KTH researcher and founder of MyFC, says that the device can be powered by fresh or seawater. The water need not be completely clean.
"Our invention has great potential to accelerate social development in emerging markets," Lundblad says. "There are large areas that lack electricity, while mobile phones fulfill more and more vital functions, such as access to weather information or electronic payment."